Something I forgot to say about the daytime shots with sunlight. You need to match the direction of your infinite light (sun) with the sun in the HDRI. If you don't it will look strange and the shadows won't match the background. switch to another camera view and point that camera directly at the sun in the HDRI. Make sure that the sun in in the very center of your view. Then rotate your infinite light so that it's in the direct center BEHIND the light control sphere pointing at you. Now when you switch back to your main camera the sunlight will be coming from the right direction and the shadows will look correct.

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740